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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-*/
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef AUDIOSTREAMTRACK_H_
#define AUDIOSTREAMTRACK_H_
#include "MediaStreamTrack.h"
#include "DOMMediaStream.h"
#include "CrossGraphPort.h"
#include "nsClassHashtable.h"
namespace mozilla::dom {
class AudioStreamTrack : public MediaStreamTrack {
public:
AudioStreamTrack(
nsPIDOMWindowInner* aWindow, mozilla::MediaTrack* aInputTrack,
MediaStreamTrackSource* aSource,
MediaStreamTrackState aReadyState = MediaStreamTrackState::Live,
bool aMuted = false,
const MediaTrackConstraints& aConstraints = MediaTrackConstraints())
: MediaStreamTrack(aWindow, aInputTrack, aSource, aReadyState, aMuted,
aConstraints) {}
AudioStreamTrack* AsAudioStreamTrack() override { return this; }
const AudioStreamTrack* AsAudioStreamTrack() const override { return this; }
// Direct output to aSink, or the default output device if aSink is null.
// No more than one output may exist for a single aKey at any one time.
// Returns a promise that resolves immediately for the default device or
// when a non-default device is processing audio.
RefPtr<GenericPromise> AddAudioOutput(void* aKey, AudioDeviceInfo* aSink);
void RemoveAudioOutput(void* aKey);
void SetAudioOutputVolume(void* aKey, float aVolume);
// WebIDL
void GetKind(nsAString& aKind) override { aKind.AssignLiteral("audio"); }
void GetLabel(nsAString& aLabel, CallerType aCallerType) override;
protected:
already_AddRefed<MediaStreamTrack> CloneInternal() override;
void SetReadyState(MediaStreamTrackState aState) override;
private:
// Track CrossGraphPort per AudioOutput key. This is required in order to
// redirect all AudioOutput requests (add, remove, set volume) to the
// receiver track, which belongs to the remote graph. MainThread only.
nsClassHashtable<nsPtrHashKey<void>, CrossGraphPort> mCrossGraphs;
};
} // namespace mozilla::dom
#endif /* AUDIOSTREAMTRACK_H_ */
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